Electro-thermotherapy of tissue using penetrating microelectrode array
First Claim
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1. Apparatus for electrosurgery of tissue, the apparatus comprising:
- an array of two or more protruding treatment electrodes adapted to be inserted into tissue and adapted to be connected to an electrical source,the array of two or more protruding treatment electrodes is configured to be energized by an electrosurgical waveform from the electrical source such that plasma-mediated interactions at the array of two or more protruding treatment electrodes ablate part of the tissue;
one or more return electrodes; and
a compressible pad configured to be disposed between the one or more return electrodes and the tissue during use, the array of two or more protruding treatment electrodes is adapted to project through the compressible pad when inserted into tissue.
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Abstract
Electrosurgical therapy is provided with an electrode array configured to ablate tissue during insertion of the electrode array into tissue being treated. Once the electrode array is fully inserted, deep heating of the treated tissue can be performed by applying an additional waveform to the tissue with the electrode array. Optionally, the electrical waveform can be varied continuously during insertion of the electrode array to control the extent of coagulation at the side walls and at the bottom of the channels produced by tissue ablation.
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Citations
10 Claims
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1. Apparatus for electrosurgery of tissue, the apparatus comprising:
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an array of two or more protruding treatment electrodes adapted to be inserted into tissue and adapted to be connected to an electrical source, the array of two or more protruding treatment electrodes is configured to be energized by an electrosurgical waveform from the electrical source such that plasma-mediated interactions at the array of two or more protruding treatment electrodes ablate part of the tissue; one or more return electrodes; and a compressible pad configured to be disposed between the one or more return electrodes and the tissue during use, the array of two or more protruding treatment electrodes is adapted to project through the compressible pad when inserted into tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification